Evaluation of Drought in Gandaki River Basin of Nepal
Journal Title: Journal of Drought and Climate change Research (JDCR) - Year 2024, Vol 2, Issue 6
Abstract
Drought is often considered a silent disaster, leading to food and water shortages, displacement, and even conflict. Although evidence of ongoing climate change has been observed, limited research is carried out on drought conditions in Gandaki River Basin of Nepal. This study analyzed four indices i.e., Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Land Surface Temperature (LST) and Normalized Difference Drought Index (NDDI) for January and November between 1991 and 2021 by using Geographic Information System (GIS) and remote sensed data. NDVI showed that dense vegetation decreased by 93.26% and built-up area increased by 96.88% in January compared between 1991 and 2021. Compared between 1991 and 2021, NDWI showed that the high water stressed area increased by 49.5% in January. NDDI showed increased in abnormally drought area in January (164.03%) compared between 1991 and 2021.Both climate change and human activities significantly contributes increasing trend of drought over the 30-year period in Gandaki River Basin. The study suggests exploring the potential of modern tools such as GIS and Remote Sensing for prediction of drought and monitoring its impact on ecosystems and human. This will be beneficial for policy makers for developing the strategy for combating drought and climate change.
Authors and Affiliations
Aayush Bhattarai,; Sachin Timilsina; Santosh Ayer; Gayatri Paudel; Menuka Maharjan
Keywords
Related Articles
- EP ID EP754910
- DOI https://doi.org/10.22077/jdcr.2023.6865.1046
- Views 35
- Downloads 0
Investigating the Effect of Precipitation Series Decomposition on the Simulation of Electrical Conductivity of River Flow (Case Study: Eskandari Sub-Basin)
In this study, the effect of time series decomposition of precipitation in the simulation of electrical conductivity values of the surface water in Eskandari sub-basin in the northwest of the of Zayandeh Rood Dam Basin i...
Multitemporal Analysis of Drought in Iran: Monitoring and Evaluation of Spatial and Temporal Characteristics Using MODIS Indices
This study identified and described drought using multiple MODIS-based indicators, so the temporal-spatial characteristics of the intensity and frequency of drought in the entire country in the period from 2001 to 2021 u...
Flood Prioritization of Sarbaz River Sub-Basins Using SWAT Model
Flood is one of the most important threats to human society, which has increased in recent decades with the increase in population and climate change. Therefore, studying the features of the basins that are related to th...
Performance of Different Genotypes of Barley (Hordeum Vulgare L.) Under Normal and Saline Environments
In this study, as an action to reduce energy consumption and mitigate climate change impacts, creating a safer greenhouse structure, reducing the cost of construction and better management of greenhouses, the use of unde...
Climate Action Scenarios and the Future of Afghanistan’s Sustainable Development
Afghanistan is one of the worst affected of the climate change impact. Integrating climate measures and sustainable development goals into research and innovation can improve Afghanistan's future prospects. The effects o...